20822628846646 has 32 divisors (see below), whose sum is σ = 36221845317120. Its totient is φ = 8877903228000.

The previous prime is 20822628846637. The next prime is 20822628846653. The reversal of 20822628846646 is 64664882622802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246566206 + ... + 246650641.

It is an arithmetic number, because the mean of its divisors is an integer number (1131932666160).

Almost surely, 2^{20822628846646} is an apocalyptic number.

20822628846646 is a deficient number, since it is larger than the sum of its proper divisors (15399216470474).

20822628846646 is a wasteful number, since it uses less digits than its factorization.

20822628846646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493216980.

The product of its (nonzero) digits is 169869312, while the sum is 64.

The spelling of 20822628846646 in words is "twenty trillion, eight hundred twenty-two billion, six hundred twenty-eight million, eight hundred forty-six thousand, six hundred forty-six".